Black Tern

Black Tern Chlidonias niger

Abundance map

Black Tern, Abundance map
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Data provided by eBird

Black Tern

Chlidonias niger

Abundance

This map depicts the seasonally-averaged estimated relative abundance, defined as the expected count on an eBird Traveling Count starting at the optimal time of day with the optimal search duration and distance that maximizes detection of that species in a region.  Learn more

Relative abundance
Breeding season
Jun 14 - Jun 28
0
2.04
369.51
Non-breeding season
Nov 2 - Mar 1
0
2.04
369.51
Pre-breeding migratory season
Mar 8 - Jun 7
0
2.04
369.51
Post-breeding migratory season
Jul 6 - Oct 26
0
2.04
369.51
Note: Seasonal ranges overlap and are stacked in the order above; view full range in season maps.
Seasons timeline
Learn more